Question: Wires A, B, C, D, and E meet at a junction point O. The current in wire (mathrm{D}) and (mathrm{E}) is twice as in wire

Wires A, B, C, D, and E meet at a junction point O. The current in wire $\mathrm{D}$ and $\mathrm{E}$ is twice as in wire $\mathrm{A}$ and four times as in $\mathrm{C}$, respectively. The current in wire $\mathrm{A}$ is $4.2 \mathrm{~mA}$ into the junction, and the current in wire $\mathrm{C}$ is $5.6 \mathrm{~mA}$ out of the junction. What is the current in wire $\mathrm{B}$, and in what direction-into or out of the junction-is the current?

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